Joseph B Delmont , PA September 21, 2020 Appliance: Model 363.9552510 Refrigerator & freezer temperature was to warm. REPLACED DEFROST HEATER & DEFROST TIMER IN KENMORE REFRIGERATOR. THE VIDEOS WITH THE PARTS ON APPLIANCE PARTS PROS HELPED A LOT. THE OLD DEFROST HEATER WAS BURNED OUT. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours